A) 51 B) 50 C) 23 D) 60
A) 3 B) 1 C) 7 D) 17
A) 45 B) 103 C) 9 D) 5
A) 15 B) 3 C) 4 D) 33
A) Noble Gases B) Transition Metals C) Alkaline Earth Metals D) Alkali Metals E) Halogens
A) 2 B) 14 C) 14.007 D) 7
A) 56 B) 6 C) 137 D) 2
A) 7 B) 6 C) 2 D) 1
A) Tellurium is a solid metalloid. B) Chlorine is a liquid non-metal. C) Mercury is a solid metal. D) Phosphorus is a non-metal gas.
A) 6 B) 5 C) 42 D) 96
A) 3 B) 7 C) 4 D) 2
A) proton/+, neutron/-, electron/no charge B) proton/+, electron/-, neutron/uncharged C) proton/+, electron/neutral, neutron/- D) proton/-, electron/+, neutron/no charge
A) neutrons and electrons B) protons and neutrons C) protons and electrons D) protons and orbits
A) Phosphorus and Silicon B) Argon and Krypton C) Mercury and Thallium D) Carbon and Boron
A) electrons orbit totally randomly around the nucleus B) the atom is mostly empty space C) atoms are tiny solid spheres D) the atom is a positively charged sphere with electrons embedded in it
A) period B) nucleus C) region D) group
A) Magnesium B) Chlorine C) Lithium D) Beryllium
A) group number B) number of neutrons C) period number D) number of protons
A) the mass number minus the atomic number B) the same as the number of energy levels C) greater than the mass number D) the same as the number of electrons
A) Period Number B) State of Matter C) Group Number D) Number of Neutrons
A) Manganese B) Nitrogen C) Francium D) Carbon
A) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity. B) Yes, some Carbon atoms have 6 protons, some have 7 protons.
A) By adding or losing electrons B) by adding protons C) by losing protons D) by adding electrons
A) by losing protons B) by adding protons C) by adding electrons D) by losing electrons
A) by losing protons B) by adding electrons C) by losing electrons D) by adding protons
A) by adding or losing neutrons B) by adding protons C) by adding neutrons D) by adding electrons
A) same as the atomic number B) difference between the atomic and mass number C) same as the mass number D) mass number divided by 2
A) the same as the mass number B) the same as the number of neutrons C) the same as the atomic number D) the difference between the mass and atomic number
A) B and O B) Hg and C C) Mg and F D) Na and Li
A) F and At B) Mg and Cl C) Ba and Ra D) Li and Po
A) The noble gases B) The halogens C) The alkali metals D) The alkali earth metals E) The transition metals
A) The transition metals B) The halogens C) The noble gases D) The alkali metals
A) 18 B) 4 C) 1 D) 8 E) 17
A) how many electrons there are B) how many electron levels there are C) how many protons there are D) how reactive they are
A) how many valence electrons the atom has B) how many electrons the atom has C) the number of protons D) the number of neutrons
A) Silver B) Fluorine C) Sodium D) Mercury E) Iron
A) H B) Al C) Li D) Au E) F
A) Cs B) Mg C) Al D) Li E) I
A) the number of neutrons B) the number of protons C) the number of electrons
A) Bohr B) Newton C) Dalton D) Lewis E) Mendeleev |